20817939

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{9871}}^1$

素因数の和:9930

約数の個数: 16

約数和(自身を含む): 30010880

約数和(自身を除く): 9192941

約数列:

[1, 3, 19, 37, 57, 111, 703, 2109, 9871, 29613, 187549, 365227, 562647, 1095681, 6939313, 20817939]

約数ペア:

[(1, 20817939), (3, 6939313), (19, 1095681), (37, 562647), (57, 365227), (111, 187549), (703, 29613), (2109, 9871)]